baber/WOPTO huggingface dataset:
Patent GB-1419313-A (GB)
Title: Match plate moulding machine for producing and assembling cope and drag mould parts
IPC: B22C15/28
Filed: 1973-01-25
Abstract: 1419313 Foundry moulding machines; flasks PETTIBONE CORP 25 Jan 1973 [10 March 1972] 3877/73 Heading B3F A foundry moulding machine for the manufacture of "flaskless" sand moulds comprising cope and drag parts has a framework defining a working station WS and a stripping station S5. At the working station WS is mounted a matchplate 22 on a support 150. A flask carrier 16 supports a cope flask 18 spaced above the matchplate 22 and a drag flask 20 spaced below the matchplate 22. In operation, a ram 34 raises a base member 262 (Fig. 17) to lift the drag and cope flasks 18, 20 and the matchplate 22 from their respective supports against a press/filling head 35 so as to define moulding chambers upon each side of the matchplate. Sand is blown into the so-defined chambers through ports 350, 352. A sprue pattern 354 is mounted on a plate 280 on the head 35. The sand mould parts are then compressed by forcing a base plate 252 up into the drag mould cavity and by releasing fluid from flask retainers 288 to allow the head plate 280 to enter the cope mould cavity. To draw the matchplate 22, the base plate 252 and the base member 262 are lowered leaving the cope flask 18 and drag flask 20 with their respective mould parts cm, dm on the rotating support 16. The support is rotated through 90 degrees by means of a Geneva mechanism (not shown) to a coreplacing station (CS, not shown) where a core 360 (Fig. 28) is inserted in the drag mould part dm by hand. A further 90 degrees rotation of the carrier 16 bring both flasks 16, 18 into the stripping station SS. A base-board 24 is supplied laterally to a lifting table 308 by an automatic dispensing device (Fig. 33, not shown) and the table 308 is raised to compress the cope and drag moulds cm and dm against a reaction plate 26 to mate them, after which, the flask parts 18, 20 are stripped from the completed mould by auxiliary pistons 316. The table 308 is lowered returning the flask parts 18, 20 to the rotary carrier 16 and the completed mould is pushed out of the machine sideways when clear of the flask parts 18, 20. Guiding flasks.-The cope flasks 18 are provided with bushes (Fig. 8) for engagement with locating dowels 202 (Fig. 2) on the cope flask supports 80, and sprung pins 98 for engagement with the matchplate 22 and to facilitate stripping of the flasks 18 and their contained cope-moulds cm from the matchplate 22. In addition, the cope flasks 18, have bushes 104, 105 for receiving locating pins 118 mounted on the drag flasks 20 for cope/drag registration. Pins 158 on the match plate 22 engage with bushes 126 on the drag flasks 20 for location thereto. The matchplate 22 also has bushes 148 for engagement with dowels 150 on its support 152 (Fig. 2). The bushes 126 on the drag flasks 20 also locate the drag flasks 20 with respect to their carriers by means of dowels 202<SP>1</SP>. Sand is preferably blown into the flasks which are vented. The drag flasks 20 have sand inlets 108 in the lower side parts.
Patent GB-607531-A (GB)
Title: Improvements in and relating to high frequency wave guides
IPC: H01P3/14
Filed: 1946-02-07
Abstract: 607,531. Wave-guides. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 7, 1946, No. 3889. Convention date, Feb. 14, 1945. Addition to 586,458. [Class 40 (v)] A flexible section for a wave-guide comprises a plurality of rigid brass discs 1 having aligned central openings 2, flexible discs 6 of beryllium copper or phosphor bronze having their inner and outer edges sealed respectively to opposing faces of adjacent discs 1 to form a sealed enclosure, the radial distance between the outer edges of the discs 6 and the edges of the apertures 2 being one half-wave length at the operating frequency. This provides an effective short circuit across the gaps between adjacent discs 1 so that the succession of apertures 2 effectively constitute a smooth wave-guide. The discs 1 may be arranged at such distances apart .that any mismatch at one cavity is compensated by the mismatch at an adjacent cavity. The construction is applicable to circular and to rectangular guides.
Patent GB-401147-A (GB)
Title: Improvements in and relating to the manufacture of cartridge cases and apparatus therefor
IPC: B21D51/54
Filed: 1933-02-08
Abstract: An alloy of 99,5 per cent of zinc with 0,5 per cent of copper is described for making ammunition cartridge cases.
Patent GB-425142-A (GB)
Title: Improvements in hand operated hot air blowers
IPC: F24H3/04
Filed: 1934-02-06
Abstract: 425,142. Heating air by electricity. BREUER, A. A., 844, Blackhawk Street, Chicago, U.S.A. Feb. 6, 1934, No. 3928. [Class 39 (iii)] In a hand-operated hot air blower for melting frozen or congealed liquids, air from an air hose 22 flows through a pipe 17 in the blower under the control of a valve 25 to a chamber B, containing a heating element 8 and terminating in a delivery nozzle 13. The handle 36 opening and closing the valve 25 simultaneously operates a switch 38 closing and opening the circuit through the heating element. The lever 33 of a regulating cock 32 in the pipe 17 beyond the air valve 25 engages a stop 34 preventing entire closure of the cock when moved to cut down the air supply. A baffle 48 over the end of the pipe 17 prevents the air from blowing directly against the heating element. An air vent 56 in the pipe allows a current of cooling air to flow through the chamber containing the air valves and switch. The blower is detachably secured to the air hose.
Patent GB-794288-A (GB)
Title: Improvements relating to hydraulically acting axial piston machines operative both as pump and motor
IPC: F01B3/00
Filed: 1956-02-09
Abstract: 794,288. Liquid-pressure engines. DAIMLER-BENZ AKT.-GES. Feb. 9, 1956 [Feb. 9, 1955], No. 4111/56. Class 69 (2). [Also in Group XXVIII] In an hydraulic axial piston motor of the kind having a cylinder barrel 6 inclined at a variable angle to an output shaft 1, the cylinder barrel is rotatably mounted in a yoke 11, and rotary valve mechanism controlling communication between the cylinder bores and supply and discharge ducts is normally held stationary with respect to the yoke 11 but can be rotated a limited extent to effect an adjustment. In the embodiment of Fig. 1 the valve mechanism comprises a sleeve 16 having arcuate ports 19, 191 and fast with a shaft 12 on which the barrel 6 rotates. The shaft 12 can be rotated a limited extent to adjust the angular position of the sleeve 16 relative to the yoke. In the embodiment of Fig. 3, the sleeve 16 is replaced by a ported disc 42 having arcuate ports 41, 41<SP>1</SP>. Limited rotation of the disc may be obtained as before, or the disc may be provided with teeth 49 meshing with a gear 50. In a modification, a control sleeve and a disc are provided, each being provided with a single arcuate port and capable of independent adjustment so that the inlet port can be adjusted independently of the outlet port.
Patent GB-723554-A (GB)
Title: Improvements relating to load transporting trucks
IPC: B66F9/12
Filed: 1952-02-18
Abstract: 723,554. Fork lift trucks; tines for engaging loads. CAMPBELL, F., and WESSEX INDUSTRIES (POOLE), Ltd. Feb. 18, 1953 [Feb. 18, 1952], No. 4236/52. Classes 78 (3) and 78(4). The tines 8 of a lift truck fork are attached to either a telescoping frame, or a carriage movable thereon, by hooks 10a which engage the flange 5p of a channel member 5 secured to said frame or carriage together with a further channel member 6 which supports the lower ends of the tines. Each tine is held in position by a pin 11 which passes through aligned holes in the tine and flange.
Patent GB-524874-A (GB)
Title: Improvements in electric discharge lamps
IPC: H01J61/96
Filed: 1939-02-09
Abstract: 524,874. Electric supply to discharge lamps. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand-Ges. fur Elektrische Gluhlampen). Feb. 9, 1939, No. 4304. Drawings to Specification. [Class 38 (iv)] [Also in Group XL] In a composite light source comprising a neon lamp and a high pressure mercury vapour lamp the two lamps are run in series during normal operation, but at starting the H.P. M.V. lamp is connected to the mains over the electrodes of the neon lamp.
Patent GB-806804-A (GB)
Title: Improvements in or relating to rotational ratchet and pawl clutch mechanism
IPC: F16D43/202
Filed: 1955-02-14
Abstract: 806,804. Ratchet clutches. RATCLIFFE, J. T. May 10, 1956 [Feb. 14, 1955], No. 4335/55. Class 80 (2). An overload release ratchet clutch, between driving and driven shafts 4, 5, comprises a toothed ratchet wheel 23 fast with the driving shaft and engaged by a spring-biased pawl 21 pivoted between a pair of links 11 in turn pivoted at 12 to a surrounding cage 6-8 fast with the driven shaft, spring means 19 normally biasing the links 11 &c. to turn about the pivot 12 so that the pawl can engage the ratchet teeth, but these spring means being overcome when the clutch is subjected to overload to turn the links 11 &c. clockwise of Fig. 3 and withdraw the pawl to a disengaged position. A cylindrical block 13 is connected between the ends of the links 11 and is tapped to receive the threaded end of a rod 14. A cylindrical abutment member 15 with spigots 16 at each end slidably receives in a diametral hole an unthreaded portion of the rod 14. The spigots 16 slide in a pair of J-shaped slots 17 in the cage members 6, 7. A compression spring 19 surrounds the rod 14 and co-operates with a freely floating washer 18 and an adjusting nut 20 to draw the links 11 clockwise about their pivot-pin 12, so that the pawl 21 can be turned by a small spring 22 to engage the ratchet teeth. As shown, the spigots 16 on the block 15 lie in the short arms of the J-slots 17. If the rotation of the driven shaft 5 &c. is resisted by an overload, the pawl 21 turns clockwise of Fig. 3, on the links 11, and simultaneously turns the links 11 &c. clockwise about the pivot-pin 12, against the bias of the spring 14, until the overcentre position has been passed. The pawl 21 then disengages from the ratchet wheel 23 and remains disengaged until the clutch is reset. If the links 11 &c. are moved by hand to slide the spigots 16 into the long arms of the J-slots 17, Fig. 4 (not shown), the links 11 are turned clockwise of Fig. 3 to a position in which the pawl 21 is completely free of the ratchet teeth 23 and the clutch is therefore disengaged. The degree of overload necessary to cause clutch engagement is determined by screwing the nut 18 along the rod 14. The clutch is particularly intended for use with winches as described in Specification 607,581 [Group XXX].
Patent GB-197063-A (GB)
Title: Improvements in and relating to pianoforte bridges and the like
IPC: G10C3/08
Filed: 1922-02-15
Abstract: 197,063. Jones, J. G. Feb. 15, 1922. Pianofortes, bridges for. - A bridge shown in under-plan in Fig. 1, has bores 3 in the ends communicating with a longitudinal channel 1 on the under-face. Transverse openings 4, which may be staggered and also arranged above the lower face, and vertical passages 5 with offset portions 6, may be provided. There may be more than one longitudinal channel such as 1. According to the Provisional Specification, the bridge may be built up of sections.
Patent GB-1103080-A (GB)
Title: Article packed in a heat-shrunk foamed polymer sheet material, and method of providing same
Inventor: GROOTENBOER DIRK
IPC: B65B53/06
Filed: 1967-01-30
Abstract: 1,103,080. Shock-absorbing packaging. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 30 Jan., 1967, No. 4487/67. Heading B8C. A portion of an article is packaged in a heatshrunk foamed polymer material to which is secured a transparent film that covers a further portion of the article. In the embodiment, glasses 10 are delivered between stretched foamed polystyrene sheet 14, and transparent polystyrene film 15 which are welded together at intervals by a device 17 to form a discrete pocket for each glass. Having passed through an oven 20 to heat shrink the sheeting, the packages are then separated into single or multiple units. Alternatively, the welding device may also comprise a cutter, e.g. hot wire. The transparent film may also be heat shrinkable. Before packing the sheeting and the film may be vacuum formed to the article shape.
Patent GB-285384-A (GB)
Title: Improvements in or relating to washing machines
IPC: D06F39/08
Filed: 1928-02-13
Abstract: 285,384. Diebold, P. Feb. 14, 1927, [Convention date]. Washing-machines with enclosed rotary receptacles and with pumps; supplying liquids to washing- machines.-The goods are placed in a perforated receptacle 2 rotated in alternately reversed directions in a casing 1 by friction pulleys 4 driven from a motor shaft 16. The motor also drives a pump 18 for withdrawing liquid from a settling tank 20 and raising it through pipe 25 to a series of pipes 27, Fig. 4, arranged in arcuate form between the casing and receptacle and formed with spraying nozzles, the washing liquid not being allowed to accumulate in the bottom of the casing, but being constantly discharged therefrom to the tank 20 through a pipe 23. Hot air or superheated steam may subsequently be circulated by these means. The goods are fed into the receptacle by means of a bucket 30 moved along the internal lifters 28, the bucket being emptied and withdrawn after a half revolution of the receptacle. The receptacle is emptied in a similar manner. The ends of the casing are normally left open, but may be closed by a plug and packing. The ends of the receptacle also may be left open or may be closed by doors comprising discs 3, Fig. 5, held in posi. tion by locking bolts 37 spring-biassed to engage with a circular groove 39 in the receptacle. The bolts are withdrawn by a screw-actuated wedge 48 slidably mounted in a sleeve carried bv a bracket pivoted to the casing at 41. To open the door 3 the bracket is raised as shown and the sleeve is rotated to screw into the tapped hub of the disc 3, after which the wedge 48 is actuated to withdraw the bolts, the door being removed bodily by being swung with the bracket on the pivot 41. The Specification as open to inspection under Sect. 91 (3) (a) referred also to the tank 20 being formed with several compartments containing different liquids. This subject-matter does not appear in the Specification as accepted.
Patent GB-913843-A (GB)
Title: Improvements in or relating to contact multiple arrangements
IPC: H01H67/26
Filed: 1960-02-09
Abstract: 913,843. Contact-members for switches; electromagnetic switches. TELEFONAKTIEBOLAGET L.M. ERICSSON. Feb. 9, 1960 [Feb. 10, 1959], No. 4562/60. Class 38 (5). A contact multiple comprises parallel sets of wire springs 3 operable by members 1 to cause sleeves 5 to engage contact wires 6 arranged as shown, on an insulating block 7 having apertures 5<SP>1</SP> which are convergent to centralize the sleeves 5 in their rest position. The members 1 are wider than the space between wires 3 of adjacent sets and are located at an acute angle to the wires by correspondingly angled slots in upper and lower guide plates (Figs. 1 and 2, not shown). Apertures 2 in the members 1 have enlarged portions to allow passage of the sleeves 5 during assembly, and their lower edges are convex (Fig. 4, not shown), to reduce the tendency of the member 1 to turn when lifting the springs 3. Alternatively, the members 1 may have teeth on one edge instead of the apertures 2.
Patent GB-410927-A (GB)
Title: Improvements relating to stair carpet fastenings
IPC: A47G27/06
Filed: 1933-02-15
Abstract: 410,927. Stair carpet holders. HITCHMAN, Ltd., F. W., and HITCHMAN, F. W., 25, Great Tindal Street, Ladywood, Birmingham. Feb. 15, 1933, No. 4622. [Class 52 (v).] A stair-carpet holder of the type comprising a pivoted arm a adapted to be swung over the edge of the carpet j has the pivot end of the arm inturned at c and passed beneath a tongue g of a plate d fixed to the stair or riser, pressure being applied to the tongue g by a screw b which forms the pivot pin, the head h of the screw being arranged clear of the arm. The plate d is secured to the stair or riser by prongs e and the inturned portion c of the arm lies between it and the pressed-up tongue g. The screw has a cylindrical portion i terminating in a shoulder which bears on the tongue g. To prevent loosening of the screw on turning the arm the screw hole in the main part of the arm is of larger diameter than the screw. The tongue g may be replaced by a separate plate connected with the plate d.
Patent GB-1021100-A (GB)
Title: Improvements in or relating to prefabricated staircases
IPC: E04F11/02
Filed: 1964-02-04
Abstract: 1,021,100. Staircases. J. K. SCHMIDT and K. K. SCHMIDT. Feb. 4, 1964 [Feb. 4, 1963], No. 4705/64. Heading E1V. A prefabricated staircase comprises pillars 1, 2 braced apart by balusters 3, and supporting landing beams 4, 5, which in turn support shaped stringer beams 6. The staircase may be of reinforced concrete, wood or metal, the pillars may each be composed of short sections bolted together, and the staircase may be separated from the walls of the stairwell by rubber pads.
Patent GB-1413095-A (GB)
Title: Multi-function fluid pump
IPC: F04D25/16
Filed: 1974-02-01
Abstract: 1413095 Centrifugal blowers AMETEK Inc 1 Feb 1974 04728/74 Heading F1C A first housing portion surrounds a centrifugal impeller to provide an impeller chamber having an outlet and an inner wall which is apertured to provide an eye opening to and aligned with the impeller intake; a second housing portion forms an antechamber discharging through the eye into the impeller intake and having first and second inlets for respective fluid streams opening to the antechamber at regions spaced angularly from each other about the axis of and radially outwardly from the eye; and means including a diffuser-like vaned structure divides the circumferential space in the antechamber into at least two annular sectors each receiving a fluid stream from a respective inlet and directing each sector discharge into the eye at a respective peripheral portion of the eye. Air entering via an inlet R, Fig. 2, passes via a first-stage impeller F-3, interstage stator blading 12v, a second-stage impeller F-2 and thence via an annular series of louvres 31b, Fig. 3, in a disc 31 into stator blading 11z, where it is joined by air entering via a further inlet Q, the flow being confined by elongated stator blades 1 lx, 1 ly to a sector extending anti-clockwise from the blades 11x. Air entering via a third inlet P is confined by the blades 11x, 11y to a sector forming the remainder of the stator. Both flows pass via an opening I in a wall 11b to a third-stage impeller F-1, which discharges to an outlet D leading to atmosphere. An annular portion 11s of the wall 11b is offset to provide a larger flow area towards the outlet D.
Patent GB-732853-A (GB)
Title: Improvements in or relating to vacuum tight joints
IPC: H01J5/20
Filed: 1953-02-19
Abstract: 732,853. Discharge apparatus. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Feb. 19, 1953 [Feb. 26, 1952], No. 4732/53. Class 39 (1). A method of sealing envelope parts A and B together consists of coating them at least in part with a glaze or enamel a, b, of lower melting point than the envelope parts, grinding the coated surfaces so that they fit together closely, and then fusing the coatings together to form a vacuum-tight seal. The method can be used to seal unlike materials together, such asglass, ceramic, or metal; and the sealing surfaces may be flat or curved. The abutting ground surfaces will themselves retain a degree of vacuum, and the seals, as applied to discharge tubes or cathode-ray tubes, may be made by placing the envelope parts together, and evacuating the tube as part of the ordinary processing sequences carried out on a rotary machine; the actual seal is made as the tube indexes through the oven. In Fig. 8, the enamel seal a, b is wholly within the thickwalled envelope parts A, B.
Patent GB-556695-A (GB)
Title: Hydrocolloid moulding composition and material for use therein
IPC: C08L5/12
Filed: 1942-04-10
Abstract: 556,695. Hydrocolloids modified for dental moulding &c. SURGIDENT, Ltd. April 10, 1942, No. 4768. Convention date, April 2, 1941. [Class 70] Dental moulding properties &c. of hvdrocolloids such as agar-agar, are improved by adding a slightly alkaline, aqueous dispersion of an oxide or hydroxide of an amphoteric metal, e.g., tin, zinc, manganese, or aluminium, and a less quantity of a borate, e.g., calcium or potassium metaborate or manganous borate. A finely-divided, water-insoluble, inorganic filler may also be added. The hydroxide may be precipitated preferably from a salt, e.g., tin sulphate or chloride in an acid medium by adding an alkaline compound of an alkali metal and may be peptized by potassium hydrate. Other additives mentioned include nickel nitrate antiseptic &c.
Patent GB-1214941-A (GB)
Title: Parametric optical oscillator
IPC: H01S3/081
Filed: 1968-01-30
Abstract: 1,214,941. Optical apparatus. COMPAGNIE GENERAL D'ELECTRICITE. Jan. 30, 1968 [Feb. 14, 1967j, No.4833/68. Heading G2J. [Also in Division H3] Optical waves having frequencies w 1 , and w 2  are generated and amplified by means of a resonant cavity comprising reflectors M 1 ", M 3 " and 7, reflector 7 being transparent to radiation at a pumping frequency w 3  = w 1  + w 2  and one side of the triangular resonant cavity including a crystal 4 (e.g. of lithium niobate, KDP or tellurium) providing non-linear polarization when pumped. Reflector 7 may be a plane mirror or, as shown, a prism having faces 49, 50 covered with antireflection coatings for frequency w 3 , and faces 41, 45 covered with anti-reflection coatings for frequencies w 1  and w 2 . The generated seams w 1 , w 2  are incident upon face 44, adjacent to air gap 46, at an angle greater than the critical angle for each frequency so that they are totally reflected. Mirror M 3 " may be partially transmissive for extracting radiation at frequency w 1  or w 2 , or both. Alternatively, a plane vitreous sheet may be arranged in side 430 of the cavity. In a second embodiment Fig.4, (not shown) mirrors M 1 " and M 3 " are replaced by totally reflecting prisms arranged so that radiation at frequencies w 1 , w 2  enters and leaves the prisms at the Brewster angle. One of these prisms, corresponding to M 1 " may be modified by making its reflecting surface spherical or elliptical, having its focus inside crystal 4 and preferably at its centre. The pumping radiation may be derived from a laser, and may be polarized in a plane which is orthogonal to that of the generated radiations.
Patent GB-901615-A (GB)
Title: Filling and pouring spout for a container
IPC: B65D77/06
Filed: 1960-02-11
Abstract: 901,615. Containers; container closures; boxes. HEDWIN CORPORATION. Feb. 11, 1960 [July 30, 1959], No. 4839/60. Classes 18, 66 and 125(3) A container formed of a flexible thermoplastic material, e.g. polyethylene, has a retractable spout comprising a web portion 30, a cylindrical neck 32 and a member 34 fitting within the neck 32, a tab 42 being provided on a ring 44 by means of which the spout may be pulled out, flanges . 36 on the member 34 causing the neck 32 to reverse itself. A screw closure 38 is fitted to the spout; and the member 34 has ribs 40 to prevent its rotation in the neck 32. In modifications, a closure plug 50, Fig. 7, replaces the member 34 and cap 38, the upper end of the plug having a finger-grip recess 54 ; or, Fig. 8, the central part of the bottom of a plug has an upward nipple the top of which is cut off before dispensing the container contents. As shown in Fig. 15 the member 34 is divided by a rib 83 into two areas 84, 85, the rib acting on the neck portion, as it is pulled out, to double it back so that in its extended position it encloses the area 85, Fig. 16 (not shown). The container may be inserted in a carton, Fig. 14 (not shown), the inner flap covers of which have registering semi-circular cut-out portions one of the outer flaps having a perforated portion to provide access to the spout and the outer and inner flaps being glued together. Either of the body halves 22, 24 of the container may be collapsed into the other half. Specifications 863,024 and 872,065 are referred to.